Koseki-Ohnishi Laboratory

Kodai Takeda, Takafumi Koseki:

“Visual Map of Power Transmission of Magnetically Coupled Wireless Power Transfer System Based on Independent Analysis of Transmitter and Receiver Sides,”

IEEJ Transactions on Industry Applications, Vol. 141, No. 4, pp. 330-338, 2021

Kodai Takeda, Takafumi Koseki:

“Geometrical Circuit Design for Dynamic Wireless Power Transfer to Suppress Power Fluctuation to Coupling Variation,”

IECON2020, Singapore, Oct. 2020

Kodai Takeda, Takafumi Koseki, Takehiro Imura, Toshiyuki Fujita, Yusuke Minagawa:

“Visualized Evaluation of Feasibility of Power Transmission with Electrical Constraints in Wireless Power Transfer,”

WoW2020, Korea, Nov. 2020

Kodai Takeda, Toshiyuki Fujita, Takehiro Imura, Yusuke Minagawa, Takafumi Koseki:

“Evaluation of Interoperability and Visualization of Power Transmission Characteristics of Wireless Power Transfer with Practical Constraints for EV,”

2020 JSAE Annual Congress (Spring), 2020

Kodai Takeda, Wataru Ohnishi, Takafumi Koseki:

“Proposal of Simplified Transfer Function Model for Dynamic Rectified DC Voltage in DWPT,”

WPTC2019, London, UK, Jun. 2019

武田 広大, 大西 亘, 古関 隆章:

“インバータの電流/電圧情報から得られた周波数応答情報に基づく S/S 方式非接触給電回路の素子推定手法の提案,”

IEICE technical report, 2019

Kodai Takeda, Takafumi Koseki:

“Improvement of Efficiency of Multi-Parallel Dynamic Wireless Power Transfer System with LCC Topology,”

IECON2018, USA, Oct. 2018

Kodai Takeda, Takafumi Koseki:

“Analytical Investigation on Asymmetric LCC Compensation Circuit for Trade-off between High Efficiency and Power,”

IPEC2018, Japan, May 2018

Van-Duc Doan, Hiroshi Fujimoto, Takafumi Koseki, Tomio Yasuda, Hiroyuki Kishi, Toshiyuki Fujita:

“Allocation of Wireless Power Transfer System From Viewpoint of Optimal Control Problem for Autonomous Driving Electric Vehicles,”

IEEE Transactions on Intelligent Transportation Systems, Vol. 19, No. 10, pp. 1-16, 2018

Van-Duc Doan, Hiroshi Fujimoto, Takafumi Koseki, Tomio Yasuda, Hiroyuki Kishi, Toshiyuki Fujita:

“Iterative Dynamic Programming for Optimal Control Problem with Isoperimetric Constraint and Its Application to Optimal Eco-driving Control of Electric Vehicle,”

IEEJ Journal of Industry Applications, Vol. 7, No. 1, pp. 80-92, 2018

Van-Duc Doan, Hiroshi Fujimoto, Takafumi Koseki, Tomio Yasuda, Hiroyuki Kishi, Toshiyuki Fujita:

“Simultaneous Optimization of Speed Profile and Allocation of Wireless Power Transfer System for Autonomous Driving Electric Vehicles,”

IEEJ Journal of Industry Applications (To be submitted), Vol. 7, No. 2, pp. 189-201, 2018

武田 広大, 古関 隆章:

“複数送電コイル並列接続走行中非接触給電における待機損失を考慮した伝送効率最大化と出力電力特性の設計,”

電子情報通信学会, 信学技報, vol. 117, no. 85, WPT2017-12, pp. 23-28, 2017

武田 広大, 古関 隆章:

“走行中非接触給電システムの電力伝達特性に配線インピーダンスが与える影響の定量的評価と抑制,”

平成２９年電気学会産業応用部門大会, R4-1 4-6, 2017

Van-Duc Doan, Takafumi Koseki, Tomio Yasuda, Hiroyuki Kishi, Toshiyuki Fujita:

“Design of an Optimal Speed Profile of an Electric Vehicle charged by Dynamic Wireless Power Transfer for Minimizing the Energy Consumption,”

EVTeC & APE, Japan, 2016

Van-Duc Doan, Takafumi Koseki, Tomio Yasuda, Hiroyuki Kishi, Toshiyuki Fujita:

“Simultaneous Optimization of EV Speed Profile and Allocation of WPT System for Minimizing the Length of WPT section: A Case Study,”

WPT研究会 WPT2016-19, pp. 49-54, 2016

武田 広大, 古関 隆章, 保田 富夫, 藤田 稔之:

“走行中非接触給電における単一電源による複数送電コイル一括励磁のための送電コイル接続法とその特性,”

WPT研究会, WPT2016-18, pp.43-48, 2016

松岡 秀樹, 渡邉 翔一郎, 古関 隆章:

“T字形等価回路モデルを利用した鉄道用電磁誘導式非接触給電装置のコア形状・位置ずれによる特性変化の研究,”

電気学会論文誌D, Vol. 135, No. 7, pp. 746-754, 2015

Hiroki Narita, Takafumi Koseki:

“Design Method of Transmitter Voltage and Load Impedance for Multiple Transmitter/Receiver Wireless Power Transfer via Magnetic Resonant Coupling,”

IEICE Asian Wireless Power Transfer Workshop 2015, New Taipei City, Taiwan, 2015

Sigang Luo, Hideki Matsuoka, Takafumi Koseki:

“Position-Sensorless Detection of Coil Misalignment for Wireless Static Power Charging of Electric Trains,”

TER-15-025, pp. 43-48, 2015

Sigang Luo, Yasuhiro Takada, Takafumi Koseki, Tatsuhito Saito, Febry Pandu Wijaya, Keichiro Kondo:

“Experimental Verification of Sensor-less Coil Position Control System and its Gap Deviation Tolerance Improvement Method in Wireless Power Transmission System of Electrical Trains,”

TER-15-035, VT-15-022, pp. 19-24, 2015

成田 大輝, 古関 隆章:

“複数送信コイルによる磁界共振結合を用いた非接触給電における高効率化(無線電力伝送),”

電子情報通信学会技術研究報告, vol.115, no.82, pp. 31-36, 2015

松岡 秀樹, 古関 隆章:

“鉄道用電磁誘導式非接触給電装置の等価回路モデルとコア形状・位置ずれによる特性変化,”

TER-14-013, PHS-14-013, 2014

ドアンヴァン ドゥック, 古関 隆章:

“非接触給電車両における車載蓄電装置の容量最小化を目的とした運転曲線の設計法,”

TER-14-015, PHS-14-013, pp. 67-72, 2014

Van-Duc Doan, Takafumi Koseki:

“A Numerical Study on Running Profile Suitable for Train fed by Intermittent Contactless Power Transimission,”

Japan railway technology symposium(J-Rail), S9-16, pp.331-334, Tokyo, 12. 2013.

松岡 秀樹, 古関 隆章:

“鉄道用電磁誘導式非接触給電装置の位置ずれ及びギャップ長変化による性能変化の評価,”

日本電気学会第20回鉄道技術連合シンポジウム, 東京, 2013. 12, No. S9-10.